Here is a document from Jo with her 7 favorite messages to set positive classroom norms for the start of the school year. The last page is a summary that you can post in your classroom.
Here are some of our Assessment for Learning (A4L) strategies we chose with David Wees.
These come from David’s longer post that can be found here. http://davidwees.com/content/formative-assessment
Have a great start to your school year!
UPDATE: We have just posted a UK version of the norms document here: http://youcubed.org/teachers/wp-content/uploads/2014/08/Positive-Classroom-Norms-UK-version.pdf